Fix dynamic library linking.

elf/Makefile

Index: elf/Makefile
diff --git a/elf/Makefile b/elf/Makefile
index 07fc811c01aae3647c331a0cd8220480ba2a434a..fb5db6d40cbdaa249decf2c68c25600edd990552 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -308,8 +308,13 @@ $(objpfx)ld.so: $(objpfx)librtld.os $(ld-map)
 	$(LINK.o) -nostdlib -nostartfiles -shared $(z-now-$(bind-now))	\

[pasko-google - do not use, 2011/08/24 16:38:14]

would be nice to leave a comment above this line:
# NaCl loader refuses to run ld.so with more than 3 loadable segments.  Remove
the bss segment.

[khim, 2011/08/24 17:03:07]

Done.

 		  $(LDFLAGS-rtld) -Wl,-z,defs -Wl,--verbose 2>&1 |	\
 		  LC_ALL=C \
-		  sed -e '/^=========/,/^=========/!d;/^=========/d'	\
+		  sed -e '/^=========/,/^=========/!d;/^=========/d' \
 		      -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
+		      -e 's/_end = \.; PROVIDE (end = \.);/& . = DATA_SEGMENT_END(.);/' \
+		      -e 's/seg_bss      PT_LOAD FLAGS(6) ;       \/\* read + write \*\///' \
+		      -e 's/\. = DATA_SEGMENT_END (\.);//' -e 's/} :seg_bss/}/' \

[pasko-google - do not use, 2011/08/24 16:38:14]

please, wrap the 2-nd -e here to the next line, would be more readable

[khim, 2011/08/24 17:03:07]

Done.

+		      -e 's/\. = ALIGN (CONSTANT (MAXPAGESIZE));//' \
+		      -e 's/\. = ALIGN (CONSTANT (COMMONPAGESIZE));//' \
 		  > $@.lds
 	$(LINK.o) -nostdlib -nostartfiles -shared -o $@			\
 		  $(LDFLAGS-rtld) -Wl,-z,defs $(z-now-$(bind-now))	\